// +build integration

/*
Copyright 2020 The Crossplane Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package integration

import (
	"context"
	"time"
)

func waitFor(ctx context.Context, interval time.Duration, check func() (bool, error)) error {
	ticker := time.NewTicker(interval)

	for {
		select {
		case <-ctx.Done():
			return ctx.Err()
		case <-ticker.C:
			// check functions return both a boolean and error to demonstrate
			// whether an error has occurred and whether the function should
			// continue to be called. waitFor will only exit when the check
			// function returns true.
			done, err := check()
			if done {
				return err
			}
		}
	}
}
